Later.. -

Returned the older (cheaper) Anker to Amazon.

Got the latest and greatest (price) version.

Bluetooth now starts almost automatically.

Supposed to be higher frequency sound quality.

The bass is great at reverberating off of any flat surface the unit is set on. If it can be set ONLY on ridges surrounding the flat surface, makes the sound tru-er.

(Strung from ceiling might be good, but limiting)

Hanging on a string from back of  laptop support

desk to isolate reverberator works for the nonce .

Best hybrid solution are my Widex hearing aids using their iPhone control software to emphasize the treble I'm reaching for in the audio signal; and subdue resonance from the bass.

 End of life for at least one of the internal speakers on my 2015 Mac BookPro

Intolerable sound quality. No point in a $250 teardown charge just to replace a speaker. 

Might be getting one of the new M2 chip laptops anyway.

None of my sound conditioning software helped. 

BUT noticed that headphones were as ok as before,

Got a $25 Anker powered speaker with USB cord to charge the battery  & Bluetooth to manage the  headphone port connection.

"Battleship" quality construction

Initially there was a "connection rejected" error.

Stumbling around in settings somehow got me beyond that problem. Testing now with YouTube Xmas muzak.